United States. Navy Department. Bureau of Aeronautics. (1924). Aircraft engine spark plugs. [publisher not identified].
Chicago Style (17th ed.) CitationUnited States. Navy Department. Bureau of Aeronautics. Aircraft Engine Spark Plugs. Washington: [publisher not identified], 1924.
MLA (9th ed.) CitationUnited States. Navy Department. Bureau of Aeronautics. Aircraft Engine Spark Plugs. [publisher not identified], 1924.
Warning: These citations may not always be 100% accurate.